Safety observations from the pilot phase of the randomized r-hirudin for improvement of thrombolysis (HIT-III) study - Neuhaus, K L; v. Essen, R; Tebbe, U; Jessel, A; Heinrichs, H; Maurer, W; Doring, W; Harmjanz, D; Kotter, V; Kalhammer, E; Simon, H; Horacek, T (Circulation, 1994)